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Which of the following are not correct?(i) The basic unit of time is second.(ii) Every object moves with a constant speed.(iii) Distances between two cities are measured in kilometres(iv) The time period of a given pendulum is not constant.(v) The speed of a train is expressed in m/h |
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Answer» (i) Correct. (ii) Not Correct. (iii) Correct. (iv) Not Correct. (v) Not Correct. |
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